KVM: ppc: fix invalidation of large guest pages
When guest invalidates a large tlb map, there may be more than one
corresponding shadow tlb maps that need to be invalidated. Use eaddr and eend
to find these shadow tlb maps.
Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 75dff7c..5a5602d 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -177,7 +177,8 @@
vcpu->arch.msr & MSR_PR);
}
-void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid)
+void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
+ gva_t eend, u32 asid)
{
unsigned int pid = asid & 0xff;
int i;
@@ -191,7 +192,7 @@
if (!get_tlb_v(stlbe))
continue;
- if (eaddr < get_tlb_eaddr(stlbe))
+ if (eend < get_tlb_eaddr(stlbe))
continue;
if (eaddr > get_tlb_end(stlbe))
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 0000974..8c605d0 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -137,7 +137,7 @@
if (tlbe->word0 & PPC44x_TLB_VALID) {
eaddr = get_tlb_eaddr(tlbe);
asid = (tlbe->word0 & PPC44x_TLB_TS) | tlbe->tid;
- kvmppc_mmu_invalidate(vcpu, eaddr, asid);
+ kvmppc_mmu_invalidate(vcpu, eaddr, get_tlb_end(tlbe), asid);
}
switch (ws) {
diff --git a/include/asm-powerpc/kvm_ppc.h b/include/asm-powerpc/kvm_ppc.h
index 5a21115..a8b0687 100644
--- a/include/asm-powerpc/kvm_ppc.h
+++ b/include/asm-powerpc/kvm_ppc.h
@@ -61,7 +61,8 @@
extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
u64 asid, u32 flags);
-extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid);
+extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
+ gva_t eend, u32 asid);
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu);